Hi I have the same problem... But I have Vista... I can't kind the Security Tool process at all.... My home computer is the one with the virus, so I am on my laptop, which is also vista and even on this one I cannot find it. I went through with the anti-malware program you provided and discovered a lot of things on my computer... and deleted them but the main virus is still there... :/ Idk what to do and am seriously worried about the life of my computer. If you could help me at all, it would be very much appreciated.